基于模糊自调整和采样模糊控制的磨机负荷控制策略  

Mill load control strategy based on fuzzy self-tuning and sampling fuzzy control

作　　者：曹晖[1] 王苗苗[1] 贾立新[1] 张彦斌[1] 

机构地区：[1]西安交通大学电气工程学院,电力设备电气绝缘国家重点实验室,陕西西安710049

出　　处：《中南大学学报（自然科学版）》2013年第S1期255-259,共5页Journal of Central South University:Science and Technology

基　　金：国家高技术研究发展计划("863"计划)项目(2006AA04Z180);国家自然科学基金资助项目(61005058)

摘　　要：针对火电厂球磨机非线性、大惯性及强耦合的特点,提出一种基于模糊自调整和采样模糊控制的磨机负荷控制策略。模糊自调整算法以出口温度和入口负压作为输入变量,通过模糊推理后对磨机负荷的控制目标值进行修正;而采样模糊控制结合采样控制和模糊控制各自的优点,对磨机负荷进行实时控制,这样可以保证球磨机始终稳定运行在最佳工作点附近,从而达到安全生产、节能降耗的目的。提出的控制策略已经成功应用于工业现场,现场试验和统计数据表明该方法具有良好的控制品质和显著的节能效果。For the characteristics of nonlinearing,large inertia and strong coupling of the ball mill in the thermal power plant,a mill load control strategy was proposed based on the fuzzy self-tuning and sampling fuzzy control.The fuzzy self-tuning algorithm takes outlet temperature and inlet negative pressure as input variables,and adjusts the set value of mill load by the fuzzy inference.Sampling fuzzy control combines the advantages of sampling control and fuzzy control to real-time control the mill load,which ensures that ball mill is always steadily running near the best operating point,so as to realize safe production and energy saving.The proposed control strategy has been successfully applied in industrial field.The experimental resultal and statistical data show that the strategy has good control quality and significant energy-saving effect.

关 键 词：火电厂制粉系统 球磨机 负荷控制 模糊自调整 采样模糊控制 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置] TM621.6[自动化与计算机技术—控制科学与工程]